Home / 728,433.40-1,092,261.30-307,233.40

Finding the Fourth Proportional to 728,433.40, 1,092,261.30 and 307,233.40

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Solution

The fourth proportional to 728,433.40, 1,092,261.30 and 307,233.40 is: 460,686.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,433.40 : 1,092,261.30 = 307,233.40 : x
  2. Step 2: Convert to fraction form
    728,433.40/1,092,261.30 = 307,233.40/x
  3. Step 3: Cross multiply
    728,433.40x = 1,092,261.30 × 307,233.40
  4. Step 4: Simplify right side
    728,433.40x = 335,579,152,887.42
  5. Step 5: Solve for x
    x = 335,579,152,887.42/728,433.40
  6. Step 6: Final answer
    x = 460,686.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.